Can / Could / Be able to (Yetenek, Rica) Test 1

Aşağıdaki cümlelerden hangisinde 'be able to' geçmişteki bir başarıyı ifade etmek için kullanılmıştır?

A) I am able to speak Spanish.
B) She will be able to join us later.
C) They were able to win the competition.
D) He is able to fix the car.